Whakaoti mō x
x=800
Graph
Tohaina
Kua tāruatia ki te papatopenga
63x+4200-65x=2600
Tangohia te 65x mai i ngā taha e rua.
-2x+4200=2600
Pahekotia te 63x me -65x, ka -2x.
-2x=2600-4200
Tangohia te 4200 mai i ngā taha e rua.
-2x=-1600
Tangohia te 4200 i te 2600, ka -1600.
x=\frac{-1600}{-2}
Whakawehea ngā taha e rua ki te -2.
x=800
Whakawehea te -1600 ki te -2, kia riro ko 800.
Ngā Tauira
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